PONDWEEDS AND PONDWEEDLIKE PLANTS 

 OF EASTERN NORTH AMERICA 



By 



Neil Hotchkiss , Wildlife Research Biologist 



Patuxent Wildlife Research Center 



Division of Wildlife Research 



Circular 187 

 Washington, D. C. • May 1964 



For sale by the Superintendent of Documents, U.S. Government Printing Office 

 Washington, D.C., 20402 - Price 25 cents 



